Stockholders' Equity (Details) (USD $) In Thousands, except Share data, unless otherwise specified	1 Months Ended	3 Months Ended		12 Months Ended
	Jun. 30, 2012	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Stockholders' equity
Maximum stock repurchase amount approved by Board of Directors	$ 200,000
Remaining stock repurchase amount approved by Board of Directors				79,300
Number of shares repurchased				2,765,000
Repurchase of common stock, payments		0		120,700
Average stock price of shares repurchased (in dollars per share)				$ 43.66
Reconciliation of retained earnings
Retained earnings, at the beginning of the period		600,811
Net income attributable to Deckers Outdoor Corporation		1,007	7,887
Retained earnings, at the end of the period		601,818		600,811
2006 Equity Incentive Plan (2006 Plan)
Stockholders' equity
Common stock reserved for issuance (in shares)		6,000,000
Maximum number of shares that may be issued through the exercise of incentive stock options		4,500,000
2006 Equity Incentive Plan (2006 Plan) | Nonvested stock units issued (NSUs)
Stockholders' equity
Number of shares granted		108,000
Weighted-average grant date fair value of awards (in dollars per share)		$ 55.69
Future unrecognized compensation cost, excluding estimated forfeitures		6,000
2006 Equity Incentive Plan (2006 Plan) | Nonvested stock units issued (NSUs) | Subsequent to March 31, 2013
Stockholders' equity
Number of shares granted		174,500
Weighted-average grant date fair value of awards (in dollars per share)		$ 58.52
Future unrecognized compensation cost, excluding estimated forfeitures		$ 10,200
2006 Equity Incentive Plan (2006 Plan) | Nonvested stock units issued (NSUs) | Award granted in 2012
Stockholders' equity
NSUs granted that will vest at the end of each of the three years after the performance goals are achieved (as a percent)		33.30%
Award vesting period of the grants		3 years
2006 Equity Incentive Plan (2006 Plan) | Nonvested stock units issued (NSUs) | Award granted in 2013
Stockholders' equity
NSUs granted that will vest at the end of each of the three years after the performance goals are achieved (as a percent)		33.30%
Award vesting period of the grants		3 years